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Switzerland Suisse Swiss Geodetic Commission Commission Géodésique Suisse Swiss National Report on the GEODETIC ACTIVITIES in the years 2007 to 2011 Presented to the XXV General Assembly of the International Union of Geodesy and Geophysics in Melbourne, Australia, June/July 2011 Rapport National Suisse sur les ACTIVITÉS GÉODÉSIQUES exécutées de 2007 à 2011 Présenté à la vingt-cinquième Assemblée générale de l’Union Géodésique et Géophysique Internationale tenue à Melbourne, Australie, juin/juillet 2011 Zürich 2011 Switzerland Suisse Swiss Geodetic Commission Commission Géodésique Suisse Swiss National Report on the GEODETIC ACTIVITIES in the years 2007 to 2011 Presented to the XXV General Assembly of the International Union of Geodesy and Geophysics in Melbourne, Australia, June/July 2011 Rapport National Suisse sur les ACTIVITÉS GÉODÉSIQUES exécutées de 2007 à 2011 Présenté à la vingt-cinquième Assemblée générale de l’Union Géodésique et Géophysique Internationale tenue à Melbourne, Australie, juin/juillet 2011 Zürich 2011 Swiss Geodetic Commission/Commission Géodésique Suisse ETH Zurich Schafmattstr. 34 8093 Zurich Switzerland http://www.sgc.ethz.ch/publications Edited by: J. Mueller-Gantenbein, Secretary of the SGC A. Wiget (Commission 1) U. Marti (Commission 2) M. Rothacher (Commission 3) P.-Y. Gilliéron (Commission 4) In addition to the bibliographies at the end of each section we recommend the following www-sites: Astronomical Institute of the University of Bern (AIUB): http://www.aiub.unibe.ch/ Institute of Geodesy and Photogrammetry, Eidgenössische Technische Hochschule, ETH Zurich: http://www.igp.ethz.ch/ Federal Office of Topography (swisstopo): http://www.swisstopo.ch/ Geodetic Engineering Laboratory, École polytechnique fédérale de Lausanne EPFL: http://topo.epfl.ch/ Haute Ecole d’Ingénierie et de Gestion du Canton de Vaud: http://www.heig-vd.ch/ University of Applied Sciences Northwestern Switzerland, Fachhochschule Nordwestschweiz: http://www.fhnw.ch/ ISBN 978-3-908440-26-0 Printed by: adag, Zurich ©2011 Swiss Geodetic Commission PREFACE The Swiss Geodetic Commission (SGC) is an organisation within the Swiss Academy of Sciences (SCNAT). It is devoted to research into scientific problems of geodesy including the transfer to practical application in national surveying. Of particular importance is the promotion of international cooperation and national coordination. For the compilation of the national report covering the scientific activities of the past 4 years it was decided to follow the structure of previous national reports and to divide it into 4 commissions according to the structure of the International Association of Geodesy (IAG): 1 Reference Frames 2 Gravity Field 3 Earth Rotation and Geodynamics 4 Positioning & Applications These main chapters were compiled by an editorial staff consisting of A. Wiget (Commission 1), U. Marti (Commission 2), M. Rothacher (Commission 3), P.-Y. Gilliéron (Commission 4). Our special thanks go to J. Mueller-Gantenbein, secretary of SGC, for the careful editing and preparation of the layout. Without her efforts this report could not have been realized in due time. The SGC expresses its appreciative thanks to all colleagues who have contributed to this report and who are promoting Geodetic Sciences in Switzerland. Financial support was provided by the SCNAT. Its valuable help is gratefully acknowledged. On behalf of the Swiss Geodetic Commission, June 2011 Urs Marti Alain Geiger Vice-President of SGC President of SGC III IV Contents Commission 1: Reference Frames CODE Contributions to the IGS ….………………………………………………………1 by S. Schaer, H. Bock, R. Dach, S. Lutz, M. Meindl, E. Orliac and D. Thaller EUREF Activities at CODE ………………………………………………………………3 by S. Schaer, R. Dach, S. Lutz and M. Meindl Reprocessing Activities at CODE ..………………………………………………………5 by S. Lutz, P. Steigenberger, R. Dach, S. Schaer, M. Meindl, L. Ostini and K. Sosnica GNSS Data Calibration Parameters ………………………………………………………7 by S. Schaer and R. Dach AIUB contribution to the Galileo Reference Terrestrial Frame ….……………………….10 by L. Prange, R. Dach and A. Steinbach Combining SLR and GNSS measurements ………………………………………………..12 by D. Thaller, K. Sosnica, G. Beutler, R. Dach and A. Jäggi The Zimmerwald Observatory ….………………………………………………………….15 by T. Schildknecht, A. Jäggi, M. Ploner and E. Brockmann Satellite Laser Ranging at Zimmerwald …….……………………………………………..18 by A. Jäggi, M. Ploner, J. Utzinger, M. Prohaska, E. Pop, W. Gurtner and E. Brockmann New Legislation for Geoinformation and National Survey …….………………………….20 by A. Wiget Internet platform and transformation service to support the reference frame change in Switzerland ..……………………………………………………………………21 by M. Kistler, U. Marti, J. Ray and A. Wiget Enhancing the Swiss Permanent GPS Network (AGNES) for GLONASS …….……………24 by E. Brockmann and U. Wild Analysis of Permanent GNSS Networks at swisstopo (PNAC) …..……………………….25 by E. Brockmann, D. Ineichen and S. Schaer Densification and validation of the LV95 reference frame with the campaign CHTRF2010 …………………………………………………………………….27 by E. Brockmann and A. Schlatter Measurements for the National Height System ….………………………………………..29 by A. Schlatter GNSS Clock Modelling and Estimation …………………………………………………..30 by K. Wang and M. Rothacher Bibliography Commission 1 ….……………………………………………………………34 V Commission 2: Gravity Field Phase center modeling and its impact on LEO Precise Orbit Determination …..…..………43 by A. Jäggi, H. Bock, U. Meyer, L. Prange, G. Beutler and R. Dach Global Gravity Field Determination based on the GRACE-Mission ……..………………..45 by A. Jäggi, G. Beutler, U. Meyer, L. Prange and L. Mervart Global gravity field determination based on CHAMP-GPS-data ………………………….47 by L. Prange, A. Jäggi and G. Beutler Processing Facility for ESA's GOCE Gravity Field Explorer Mission ..…………………..49 by H. Bock, A. Jäggi, U. Meyer, R. Dach and G. Beutler Absolute and Relative Gravity Measurements ……..………………………………………51 by U. Marti, H. Baumann, B. Bürki and S. Guillaume Gravity measurements for the Vertical network ….….…………………………………….53 by U. Marti and A. Schlatter The Earth Tide Observatory in Zimmerwald ……..………………………………………..54 by U. Marti and B. Bürki Ultra precise geoid determination for a new generation of future linear collider: A feasibility study at CERN …….……………………………………………………....….55 by S.Guillaume, M. Jones, B.Bürki and A. Geiger GeoHALO: Geoscientific Research with the New German “High Altitude and Long Range Research Aircraft” (HALO) ……………………………………………..57 by A. Geiger, M. Müller, M. Rothacher and M. Scheinert Sea Surface Topography and Marine Geoid by Airborne Laser Altimetry and Shipborne Ultrasound Altimetry ….………………………………………..58 by P. Limpach, H.-G. Kahle and A. Geiger Geoid Modeling in the Aegean Sea …..……………………………………………………60 by P. Limpach, H.-G. Kahle and A. Geiger Astrogeodetic geoid and isostatic considerations in the North Aegean sea, Greece ..……..62 by A. E. Somieski, B. Bürki and H.-G. Kahle Bibliography Commission 2 ……………………………………………………………..63 VI Commission 3: Earth Rotation and Geodynamics CODE Contributions to Earth Rotation Monitoring ……………………………………….65 by S. Schaer, R. Dach, S. Lutz, M. Meindl, D. Thaller and G. Beutler Subdaily variations in the Earth rotation …….…………………………………………….67 by N. Panafidina and M. Rothacher Recent Crustal Vertical Movements from leveling ..………………………………………69 and GNSS permanent networks by E. Brockmann and A. Schlatter Combined multi-annual GNSS solutions from …….………………………………………70 permanent networks and campaigns by E. Brockmann SWISS-4D II: Geodetic analysis of geodynamic deformations in Switzerland ..………….71 by A. Villiger, A. Geiger, A. Wiget and U. Marti COGEAR Coupled seismogenic Geohazards in Alpine Regions (COGEAR) …………….72 by A. Geiger, A. Villiger and D. Fäh Crustal deformation field in Greece determined from GPS measurements ………………74 by M.D. Müller, Ch. Hollenstein, A. Geiger and H.-G. Kahle Analysis of long-term GPS observations in Greece and geodynamic implications .………76 by M.D. Müller, A. Geiger and H.-G. Kahle GNSS Seismology ……………………………………………………………………….78 by S. Häberling and M. Rothacher Influence of Atmospheric Pressure Loading on GNSS Analysis …………………………..79 by R. Dach, S. Lutz, J. Böhm and P. Steigenberger Bibliography Commission 3 ……………………………………………………………….82 VII Commission 4: Positioning and Applications Real-Time Airborne Mapping ….………………………………………………………….85 by J. Skaloud, P. Schaer, P. Tomé and Y. Stebler Quality Control in Airborne Laser Scanning ………………………………………………86 by J. Skaloud, P. Schaer, P. Tomé, Y. Stebler and K. Legat Calibration Procedures in Mobile Mapping ……………………………………………….87 by J. Skaloud, P. Schaer and K. Legat Integrated Sensor Orientation ………………………………………………………………88 by J. Skaloud, D. Rouzaud and F. Bayoud GNSS/MEMS-IMU Integration for Positioning and Orientation ………………………….89 by A. Waegli, J. Skaloud, S. Guerrier, V. Constantin and H. Fournier Positioning in dynamic applications …...…………………………………………………..90 by J. Skaloud, A. Waegli, S. Guerier and P. Tomé Indoor Positioning and Map Matching ….…………………………………………………91 by P.-Y. Gilliéron, B. Merminod, V. Renaudin, P. Tomé, O.Yalak and F. Tappero Terrestrial Laser Scanning for Natural Hazards ….….……………………………………..92 by J. Wu, P.-Y. Gilliéron and B. Merminod Bernese Software ….……………………………………………………………………….93 by R. Dach, H. Bock, U. Hugentobler, A. Jäggi, S. Lutz, M. Meindl, L. Mervart, U. Meyer, E. Orliac, L. Ostini, L. Prange, M. Rothacher, S. Schaer, K. Sosnica, A. Steinbach, D. Thaller, P. Walser and G. Beutler Multi-GNSS